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The Zauner OZ-5 One-Yankee is an American high-wing, T-tailed, single seat, 15 metre class glider that was designed and constructed by Otto Zauner.

Design and development

Zauner designed a new fuselage and tail surfaces to mate with a set of Schreder RS-15 wings that he had built, producing a new aircraft.

The stock RS-15 wings of 15 m (49.2 ft) span are built from foam and sheet aluminium and feature flaps and a Schreder 1 airfoil, which is a modified Wortmann section. The fuselage consists of a welded steel tube cockpit cage, surrounded by a fiberglass shell. The rear fuselage is tapered and is made from sheet aluminium, as are the tail surfaces. The fin is highly swept and mounts the tailplane and elevators in T-tail configuration. The wings are carefully faired into the fuselage using integral fuselage fillets. The landing gear is a retractable monowheel.

Only one OZ-5 was built and it was registered in 1974 with the Federal Aviation Administration in the Experimental - Amateur-built category.

Operational history

The designer completed two diamond badge legs in the OZ-5. As of July 2011 the aircraft remained on the FAA registry, still owned by Zauner.

Specifications (OZ-5)

Data from Soaring

General characteristics

• Crew: one
• Wingspan: 49 ft 3 in (15 m)
• Wing area: 112.3 sq ft (10.43 m)
• Aspect ratio: 21.4:1
• Airfoil: Schreder 1
• Empty weight: 450 lb (204 kg)
• Gross weight: 700 lb (318 kg)

Performance

• Maximum glide ratio: over 30:1
• Wing loading: 6.2 lb/sq ft (30 kg/m)

See also

Related lists

• List of gliders

References

1. ^ Said, Bob: 1983 Sailplane Directory, Soaring Magazine, page 68, Soaring Society of America November 1983. USPS 499-920
2. ^ Federal Aviation Administration (July 2011). "Make / Model Inquiry Results N60Z". Retrieved July 8, 2011.

• 1970s United States sailplanes
• Homebuilt aircraft